Home / 68,760,788.57-103,129,971.01-20,227,291.90

Finding the Fourth Proportional to 68,760,788.57, 103,129,971.01 and 20,227,291.90

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Solution

The fourth proportional to 68,760,788.57, 103,129,971.01 and 20,227,291.90 is: 30,337,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,760,788.57 : 103,129,971.01 = 20,227,291.90 : x
  2. Step 2: Convert to fraction form
    68,760,788.57/103,129,971.01 = 20,227,291.90/x
  3. Step 3: Cross multiply
    68,760,788.57x = 103,129,971.01 × 20,227,291.90
  4. Step 4: Simplify right side
    68,760,788.57x = 2,086,040,026,949,414.50
  5. Step 5: Solve for x
    x = 2,086,040,026,949,414.50/68,760,788.57
  6. Step 6: Final answer
    x = 30,337,639.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.